
- Optimizing components for maximum performance across a vast array of web-capable devices and browsers
- Ability to understand business requirements and translate them into technical requirements
- You will ensure that these components and the overall application are robust and easy to maintain.
- Have a good understanding of design and user experience principles.
- Open-minded, flexible, and willing to adapt to changing situations
- Ability to work independently as well as on a team and learn from colleagues
- High adaptability in a dynamic start-up environment
- Ensuring technologies are used efficiently, profitably, and securely. Evaluating and implementing new systems and infrastructure.
- Excellent troubleshooting, analytical and problem-solving abilities with a tenacious commitment to finding the root cause of issues.
Qualifications :
- B. Tech/B.E/MTech or a related technical discipline from reputed universities
Skills Required :
- Minimum 1+ years experience in Front-End Development using ReactJS Framework
- Experience in consuming Restful Web services
- Strong hands-on experience on HTML5, CSS3, JavaScript, Bootstrap & CSS preprocessors
- Should be adept at converting PSD to HTML
- Should know UI/UX
- Excellent development skills on best practices for cross-browser compatibility and Responsive UI.
- Good with agile development practices such as continuous integration and deployment
- Knowledge of Version Control System
- Write and maintain technical documentation
- Knowledge of MVVM Architecture
- Cares deeply about writing Quality, Testable & Modular code

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React JS Developer
📍 Location: Bangalore
💼 Experience: 4+ Years
📅 Notice Period: Immediate to 30 Days
Job Summary:
Experienced React JS Developer with 4+ years of hands-on experience in building scalable, high-performance web applications. The ideal candidate should have strong expertise in modern JavaScript, React ecosystem, and front-end best practices.
Key Responsibilities:
- Develop and maintain responsive web applications using React.js
- Build reusable components and front-end libraries
- Optimize components for maximum performance across devices and browsers
- Work closely with backend developers and UI/UX designers
- Integrate REST APIs and third-party services
- Write clean, maintainable, and scalable code
- Participate in code reviews and Agile ceremonies
Required Skills:
- 4+ years of experience in front-end development
- Strong proficiency in JavaScript (ES6+)
- Hands-on experience with React.js, Redux / Context API
- Experience with HTML5, CSS3, Bootstrap / Tailwind
- Knowledge of RESTful APIs integration
- Familiarity with Git and version control systems
- Understanding of Agile/Scrum methodology
About Optiblack LLC
Optiblack LLC is a company that specializes in providing tech and analytics services. We offer a range of solutions to help businesses meet their goals, including:
- Data Analytics: we can help you extract insights from your data to make informed decisions.
- Web Development: we can design and build custom websites for your business.
- Mobile App Development: we can create mobile apps for both iOS and Android platforms.
- AI and Machine Learning: we can leverage these technologies to automate tasks and improve efficiency.
Optiblack LLC has a team of experienced professionals who can help you with your project. They have a track record of success in delivering high-quality solutions to our clients.
About the Role
We are looking for a passionate and talented intern developer to join our growing team at Optiblack LLC. This is a fantastic opportunity to gain hands-on experience building and maintaining our React Native mobile application. You will work alongside experienced developers and contribute to a product used by millions of users.
Responsibilities:
- Develop new features and functionalities for our React Native mobile application.
- Collaborate with designers and backend developers to ensure a seamless user experience.
- Write clean, maintainable, and well-documented code.
- Fix bugs and identify areas for improvement in the existing codebase.
- Stay up-to-date with the latest trends and technologies in React Native development.
- Participate in code reviews and provide constructive feedback.
Qualifications:
- Strong understanding of React Native development concepts.
- Experience with JavaScript (ES6+) and related frameworks.
- Familiarity with React development principles is a plus.
- Experience with Git version control system.
- Excellent problem-solving and debugging skills.
- Ability to work independently and as part of a team.
- Strong communication and interpersonal skills.
- A passion for learning and staying updated with the latest technologies.
Bonus Points:
- Experience with building cross-platform mobile applications.
- Experience with UI/UX design principles.
- Experience with unit testing frameworks like Jest or Mocha.
- Experience working on Social Media Apps or having an interest in working on them.
** Internship Duration:** 3 Months
Location: Remote
To Apply:
Please submit your resume and a cover letter explaining your interest in the position and why you think you would be a good fit for our team
1. Coding using JSX
2. Applying data structures and algorithms and code in javascript
3. Implementing the front-end logic that defines the behavior of the visual elements of a web application
4. Being responsible for connecting this with the services that reside on the back-end
5. Working alongside other front-end web developers who specialize in markup and styling
Strong on typescript/java script.
Strong on agile methodology.
Should have knowledge on writing unit test cases using jasmine/jest
Job Description: Senior React.js Developer
- 2+ years of relevant experience in software development building web applications
- Well acquainted with cutting edge front-end framework like React Javascript dialects like ES6.
- CSS frameworks like Bootstrap, Foundation HTML5, CSS3 and tools like Gulp/Webpack
- Strong analytical and problem- solving skills paired with the ability to develop creative and efficient solutions.
- Enjoys and gets energized by complex problem solving and ability to push the innovation on solutions.
- Ability to work both independently and in various team settings.
-Build pixel-perfect, buttery smooth UIs across both mobile platforms
-Familiarity with newer specifications of Ecma-script
-Thorough understanding of database, API's, GraphQL, caching layer, proxies, and other web services
-Experience with popular React workflows (such as Redux, Mobx, and Flux)
-Leverage native APIs for deep integrations with both platforms
-Diagnose and fix bugs and performance bottlenecks for performance that feels native
-Release applications to the Apple and Google Play stores
-Familiar with implementing crashlytics or any other bug tracking library
-Familiarity with modern front-end build pipelines and tools (like Jenkins, Github, etc)
-Experience with common front-end development tools such as Babel, Webpack, NPM, etc
-Familiarity with code versioning tools such as Git, SVN, and BitBucket
-Professional, precise communication skills
Office Location: Goregaon Mumbai
Position description:
2+ years of experience on web technologies & React Native.
Primary Responsibilities:
- Coding and debugging pure working closely with Technical Lead/Project Manager to ensure development timelines are met
- JavaScript, polyglot and multi-lingual applications
- Contribute with ideas to improve system design or streamline product delivery
- Working with challenging applications involving Real Time Data
- Working on different platforms including the usage of the Native SDKs provided on JavaScript
Required Skills:
Mandatory: Passionate about sports, Problem solving, Team player, Target & Result oriented.
Functional: JavaScript, JavaScript Object Model, React Native, Native Build Tools, XCode and Android Studio, React Native workflows (such as Context or Redux and Redux Thunk Middleware), Maintaining reusable Components and Libraries, Animations and Transitions, Integrate Third-Party APIs, GIT & JIRA.
About this Role:
As part of the frontend development team, you will be responsible to build and maintain client side applications for our users collaborating with cross-functional teams comprising Product, Design, BI, and other engineers.
You will define best practices for client side architecture and build for the long term over iterations that bring measurable business value.
You will be involved in recruiting engineers for the team and mentoring them
As a company, we are very data driven and customer focused. As an engineering team, we are driven by metrics and care deeply about agility without compromising on the quality of our output. We are working towards creating an environment where individuals feel empowered to take ownership and initiative.
About You:
● You have a minimum of 7 years of experience building high-performance consumer-facing mobile applications at product companies of a decent scale
● You have a keen eye for mobile architecture and able to assist your team in making the right choices for every project
● You have previous experience building react native applications from scratch
● You have prior experience with recruiting and building a high-performance team
● You have a passion for mentoring and helping people on your team grow and achieve their goals
● You practice test-driven development
● You are familiar with both Android and iOS design patterns, and GraphQL
● You have some exposure to native app development in Swift, Kotlin, or Java
● You have strong knowledge of software development fundamentals, including a relevant background in computer science fundamentals and agile development methodologies.
● You are an excellent collaborator & communicator. You know that startups are a team sport. You listen to others, aren’t afraid to speak your mind and always try to ask the right questions.
● You are excited by the prospect of working in a distributed team and company.
Location: We are primarily looking for candidates in Bangalore but are open to other locations in India for the right candidate. At the moment, however, like most teams, we are fully remote.









